Oxmoor DCA-2 - Manual (Page 4)

DCA-2 DIGITAL CONTROL ATTENUATOR
POWER
CHANNEL A CHANNEL B
1
Page 2
CHASSIS
SERIAL #
POWER
FUSE OUTPUT IN OUT IN OUT
REMOTE CONTROLS
CHANNEL B CHANNEL A
PRESET PRIORITY
CHAN A
INPUT OUTPUT
CHAN B
OXMOOR
MADE IN USA BY
OXMOOR CORPORATION
BIRMINGHAM, ALABAMA
INPUT
5
DCA-2 CALLOUTS
together. Provides connections to PRESET, PRIORITY,
COUNT UP, COUNT DOWN, COMMON.
7. PRESET CONTROL - Binary pot, adjusted using a small flat-
blade screwdriver. It is used to determine the default
attenuation level. The DCA-2 returns to the PRESET level
whenever it is powered up or the PRESET control line is
momentarily taken to COMMON.
8. PRIORITY CONTROL - Binary pot, adjusted using a small flat-
blade screwdriver. It is used to determine the PRIORITY
attenuation level. The DCA-2 goes to the PRIORITY level
whenever the PRIORITY control line is taken to COMMON.
9. FUSE HOLDER - Replace only with approved type of fuse
in a rating appropriate to the mains voltage, as indicated
on back panel (see SPECIFICATIONS, page 13).
10. POWER CONNECTOR - Standard IEC 3-pin connector for
AC power cord. Use only with grounded (3-wire) outlets.
Cord sets are available for all world connection
standards.
11. CHASSIS GROUND POST - A screw with a star washer
enables the installer to secure a ground wire to the
chassis.
Figure 1.0: DCA-2 Front Panel View
1. POWER STATUS LED - Indicator for AC Power On.
2. INPUT TRIM - Trim pots, accessed through the front panel
with a small flat-blade screwdriver, offer ±15 dB gain
adjustment to match different operating levels or balance
levels across channels.
3. PROGRAM INPUTS - Audio input, XLR-F–type connector, Pin
2 positive, electronically balanced, accepts balanced or
unbalanced signals from line-level devices. Normal input
level is +4 dBu with a maximum input level of +20 dBu.
4. PROGRAM OUTPUTS - Audio outputs, XLR-M–type
connectors, Pin 2 positive, unbalanced. Recommended
load impedance is 600 ohms or greater. Maximum
output level is +20 dBu.
5. REMOTE CONTROL INPUTS - Six-conductor modular
telephone jacks. Used to interface external remote control
devices. Provides connections to PRESET, PRIORITY,
COUNT UP, COUNT DOWN, DISPLAY/POWER,
COMMON.
6. REMOTE CONTROL OUTPUTS - Six-conductor modular
telephone jacks. Used to link the remote control channels
Figure 1.1: DCA-2 Rear Panel View
6 3 4 11 7 9 10 8
3. REMOTE CONTROL INPUT - Six-conductor modular telephone
jacks. Used to link to the next RC-16 Remote Control.
4. CONTROL PORT - Single line, five-pin header, used to
extend KEY SWITCH, PRESET, and PRIORITY functions
at the remote control location.
1. VIRTUAL POINTER - LED indicates the current volume
setting.
2. REMOTE CONTROL OUTPUT - Six-conductor modular
telephone jacks. Used to link the remote control to the
DCA-2’s “IN” jack.
RC-16 CALLOUTS
2
C
1
IN OUT
OXMOOR
RC-16
1 5
2 3
4
Figure 1.3: RC-16 Rear Panel View Figure 1.2: RC-16 Front Panel View